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CVE-2026-31874— Taskosaur Improper Role Assignment via Parameter Manipulation in User Registration

Quick assessment

Affected
Taskosaur Taskosaur
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Taskosaur是Taskosaur开源的一个结合对话式AI的项目管理平台。 Taskosaur 1.0.0版本存在安全漏洞，该漏洞源于用户注册过程中未正确验证角色参数，可能导致权限提升。

CVSS 9.8 · Critical EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account
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I. Basic Information for CVE-2026-31874

Vulnerability Information
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Vulnerability Title
Taskosaur Improper Role Assignment via Parameter Manipulation in User Registration
Source: CVE Program / CVE List V5
Vulnerability Description
Taskosaur is an open source project management platform with conversational AI for task execution in-app. In 1.0.0, the application does not properly validate or restrict the role parameter during the user registration process. An attacker can manually modify the request payload and assign themselves elevated privileges. Because the backend does not enforce role assignment restrictions or ignore client-supplied role parameters, the server accepts the manipulated value and creates the account with SUPER_ADMIN privileges. This allows any unauthenticated attacker to register a fully privileged administrative account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Taskosaur 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Taskosaur是Taskosaur开源的一个结合对话式AI的项目管理平台。 Taskosaur 1.0.0版本存在安全漏洞，该漏洞源于用户注册过程中未正确验证角色参数，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Taskosaur Taskosaur 1.0.0 -

II. Public POCs for CVE-2026-31874

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 6909 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-31874

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Patches & Fixes for CVE-2026-31874 (1)

Vendor Advisories for CVE-2026-31874 (1)

IV. Related Vulnerabilities

Same weakness: CWE-284

V. Comments for CVE-2026-31874

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